🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 394.5

Radius: 13

Gravity: 2.33 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 0.53 AU - 0.77 AU

Year: 362 Days

Day: 13 Hours

Environment

Temp: -161 °C

Axial Tilt: 8.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 14,330,026 km

• M1: 161,715 km (0.062 R)
• M2: 640,877 km (0.083 R)
• M3: 1,237,174 km (0.048 R)
• M4: 1,768,845 km (0.112 R)
• M5: 2,537,329 km (0.082 R)
• M6: 3,053,293 km (0.063 R)
• M7: 3,683,848 km (0.097 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 339.3

Radius: 12.6

Gravity: 2.14 G

Time & Orbit

Eccentricity (e): 0.145

Orbit Range: 0.66 AU - 0.88 AU

Year: 466 Days

Day: 6.1 Hours

Environment

Temp: -157 °C

Axial Tilt: 37.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 14,330,026 km

• M1: 156,779 km (0.072 R)
• M2: 573,109 km (0.102 R)
• M3: 978,819 km (0.073 R)
• M4: 1,549,385 km (0.079 R)
• M5: 2,155,705 km (0.084 R)
• M6: 2,574,131 km (0.111 R)
• M7: 3,109,242 km (0.066 R)
• M8: 4,209,684 km (0.079 R)
• M9: 4,730,733 km (0.101 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 404.5

Radius: 13.2

Gravity: 2.32 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 0.77 AU - 1.01 AU

Year: 580 Days

Day: 14.8 Hours

Environment

Temp: -163 °C

Axial Tilt: 48.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 14,330,026 km

• M1: 165,006 km (0.119 R)
• M2: 598,242 km (0.102 R)
• M3: 1,091,765 km (0.078 R)
• M4: 1,628,971 km (0.104 R)
• M5: 2,113,818 km (0.106 R)
• M6: 2,891,128 km (0.088 R)
• M7: 3,942,652 km (0.032 R)
• M8: 4,998,962 km (0.056 R)
• M9: 5,711,796 km (0.103 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 729.1

Radius: 8.4

Gravity: 10.33 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 0.7 AU - 1.14 AU

Year: 609 Days

Day: 7.6 Hours

Environment

Temp: -172 °C

Axial Tilt: 31.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 14,330,026 km

• M1: 104,419 km (0.119 R)
• M2: 461,809 km (0.081 R)
• M3: 762,949 km (0.084 R)
• M4: 1,066,782 km (0.12 R)
• M5: 1,562,251 km (0.069 R)
• M6: 1,850,974 km (0.083 R)
• M7: 2,847,147 km (0.073 R)
• M8: 3,156,814 km (0.047 R)
• M9: 3,732,766 km (0.057 R)
• M10: 4,454,426 km (0.087 R)
• M11: 5,058,802 km (0.028 R)
• M12: 5,922,729 km (0.088 R)
• M13: 6,430,165 km (0.093 R)
• M14: 7,487,074 km (0.093 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 855.2

Radius: 12.1

Gravity: 5.84 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 0.96 AU - 1.26 AU

Year: 807 Days

Day: 13 Hours

Environment

Temp: -182 °C

Axial Tilt: 48 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 14,330,026 km

• M1: 154,535 km (0.101 R)
• M2: 627,264 km (0.038 R)
• M3: 1,092,364 km (0.105 R)
• M4: 1,619,995 km (0.08 R)
• M5: 2,079,710 km (0.081 R)
• M6: 3,030,254 km (0.075 R)
• M7: 3,722,145 km (0.093 R)
• M8: 4,202,204 km (0.049 R)
• M9: 5,027,536 km (0.069 R)
• M10: 5,916,895 km (0.102 R)
• M11: 8,678,322 km (0.114 R)
• M12: 9,082,236 km (0.117 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 412.3

Radius: 13

Gravity: 2.44 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 0.99 AU - 1.37 AU

Year: 885 Days

Day: 7.6 Hours

Environment

Temp: -189 °C

Axial Tilt: 36.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 14,330,026 km

• M1: 161,715 km (0.051 R)
• M2: 600,635 km (0.071 R)
• M3: 1,105,229 km (0.095 R)
• M4: 1,589,477 km (0.085 R)
• M5: 2,206,569 km (0.079 R)
• M6: 3,076,331 km (0.065 R)
• M7: 3,496,850 km (0.098 R)
• M8: 4,148,050 km (0.103 R)
• M9: 4,647,707 km (0.046 R)
• M10: 5,135,246 km (0.051 R)
• M11: 6,681,041 km (0.026 R)
• M12: 7,193,713 km (0.08 R)
• M13: 7,709,676 km (0.112 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 707.8

Radius: 15

Gravity: 3.15 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 3.87 AU - 4.61 AU

Year: 6026 Days

Day: 6.4 Hours

Environment

Temp: -223 °C

Axial Tilt: 21.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 14,330,026 km

• M1: 188,643 km (0.061 R)
• M2: 1,201,121 km (0.101 R)
• M3: 1,872,517 km (0.109 R)
• M4: 2,845,052 km (0.111 R)
• M5: 3,733,963 km (0.108 R)
• M6: 4,232,124 km (0.092 R)
• M7: 5,049,676 km (0.097 R)
• M8: 6,554,780 km (0.116 R)
• M9: 7,540,181 km (0.093 R)
• M10: 8,622,223 km (0.031 R)
• M11: 13,896,296 km (0.079 R)
• M12: 14,405,377 km (0.028 R)
• M13: 15,281,722 km (0.114 R)
• M14: 20,134,377 km (0.033 R)
• M15: 21,304,532 km (0.114 R)
• M16: 23,861,010 km (0.073 R)
• M17: 26,529,238 km (0.053 R)
• M18: 27,402,440 km (0.109 R)
• M19: 30,515,123 km (0.096 R)
• M20: 34,162,768 km (0.098 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 41.6

Radius: 10.1

Gravity: 0.41 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 4.05 AU - 4.99 AU

Year: 6633 Days

Day: 11.7 Hours

Environment

Temp: -224 °C

Axial Tilt: 34.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 14,330,026 km

• M1: 125,662 km (0.074 R)
• M2: 724,203 km (0.094 R)
• M3: 1,572,274 km (0.116 R)
• M4: 1,922,482 km (0.036 R)
• M5: 3,271,107 km (0.088 R)
• M6: 5,145,419 km (0.102 R)
• M7: 6,263,064 km (0.046 R)
• M8: 9,938,086 km (0.102 R)
• M9: 12,342,572 km (0.081 R)
• M10: 13,291,172 km (0.101 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 250 - 10,259 AU

Composition

Type: Cometary Reservoir

System's final boundary, containing trillions of icy planetesimals.

Gravitational Limit